RICH BIT 012 updates the configuration regularly to improve performance. So far, we have two versions of motors.
For your correct purchase, please check which version of the motor on your electric bicycle belongs to before buying, and then choose the appropriate purchase. If you buy the wrong model, it will be incompatible with your original bicycle and cannot be used. We only distinguish between the new and old versions of the motor, so you need to check which model the rear wheel motor on your bicycle belongs to.
Grateful!